Abstract:

With the development of 5G technology, Internet of Everything has become the mainstream development direction in today's science and technology field.With the increasing number of device nodes in Internet of Thing, the security authentication of the Internet of Things becomes more and more important.In recent years, there have been frequent security problems in the field of Internet of Things,a large number of micro IoT devices have no corresponding authentication mechanism. For IoT devices, compared with traditional authentication schemes, implicit certificate schemes are more suitable for memory resource-constrained application environments in terms of computation. Based on SM2 and SM3,this paper designs an implicit certificate scheme,and uses OpenSSL to implement the functions of issuing,signing and verifying the implicit certificate.At the same time, based on the implementation of traditional digital certificate scheme and SM algorithms implicit certificate scheme,this paper carries out performance test and analysis and comparison on the same platform, the results show that the proposed scheme is significantly better than the traditional scheme on the verification in terms of time consumption.

Key words: IoT security, network authentication, implicit certificate, SM algorithms, OpenSSL